Option variable
detoutDefault value: false
When detout is true, the determinant of a
matrix whose inverse is computed is factored out of the inverse.
For this switch to have an effect doallmxops and doscmxops should be
false (see their descriptions). Alternatively this switch can be
given to ev which causes the other two to be set correctly.
Example:
(%i1) m: matrix ([a, b], [c, d]); [ a b ] (%o1) [ ] [ c d ] (%i2) detout: true$ (%i3) doallmxops: false$ (%i4) doscmxops: false$ (%i5) invert (m); [ d - b ] [ ] [ - c a ] (%o5) ------------ a d - b c